Thought leader and tech executive, John Ryan, provided valuable historical context both onstage and in his recent blog. He compared today’s social media platforms to telephone services in 1900. Back then, a Bell Telephone user couldn’t talk to an AT&T customer; businesses had to have multiple phone lines just to converse with their clients. It’s not that different today, Ryan asserts, when Facebook members can’t share their photos with Renren’s 150 million account holders. All of these walled gardens, he said, need a “trusted intermediary” layer to become fully interconnected.